Helmet

Abstract

The utility model provides a helmet which comprises a helmet body, the helmet body comprises a helmet shell, a buffer layer and a lining, the position of the helmet in the wearing state of a user is taken as a reference, goggles are further arranged on the front side of the helmet shell, and the left end and the right end of the goggles are hinged to the helmet shell. A containing gap is formed between the front side part of the helmet shell and the buffer layer, the goggles have a storage protection state completely located in the containing gap and an eye protection use state at least partially located outside the containing gap, and the goggles can be driven to be switched between the storage protection state and the eye protection use state. The helmet shell on the outer side has enough impact resistance to effectively prevent the goggles from being in direct contact with an external impact object, and the buffer layer on the inner side has a certain displacement compensation effect to flexibly support the goggles, so that the goggles are effectively prevented from being damaged due to impact of external force in a storage state.

Description

[0001] This utility model claims priority to Chinese Patent Application No. 202422190581.1, filed with the Chinese Patent Office on September 6, 2024, entitled "Smart Helmet", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model belongs to the field of head protection user design technology, specifically relating to a helmet. Background Technology

[0003] Helmets, as a type of head protection device, are widely used in people's daily lives and work. With the continuous development of science and technology, existing technologies have led to helmets that integrate augmented reality technology, audio transmission technology, panoramic camera technology, navigation and positioning technology, communication technology, and intelligent warning systems. These helmets not only provide reliable head protection but also greatly meet various user needs. For example, while riding a bicycle, users can use the helmet's visor for real-time navigation and utilize the integrated camera technology to understand surrounding road conditions. For instance, utility model patent CN 215075800 U discloses a helmet that integrates a positioning module, an image recording module, a voice communication module, an obstacle avoidance warning module, and a face recognition module. However, when stored, the visor is located on the outside of the helmet shell. When the helmet is not in use, i.e., when the user is not wearing the helmet, the visor is easily damaged by impacts. Utility Model Content

[0004] Therefore, this utility model provides a helmet that can solve the technical problem in the prior art where the visor of the helmet is located on the outside of the helmet shell when stored, making it easy to be bumped and damaged.

[0005] To address the aforementioned problems, this utility model provides a helmet, comprising a helmet body, the helmet body including a helmet shell, a buffer layer connected to the inner side of the helmet shell, and an inner liner connected to the inner wall of the buffer layer. Taking the helmet's orientation when worn by a user as a reference, a visor is also provided on the front side of the helmet shell. The left and right ends of the visor are hinged to the helmet shell. A receiving gap is formed between the front portion of the helmet shell and the buffer layer. The visor has a retracted protective state completely within the receiving gap and a protective usage state at least partially outside the receiving gap. The visor can be driven to switch between the retracted protective state and the protective usage state.

[0006] In some embodiments, a left pivot connector and a right pivot connector are respectively provided on the left and right sides of the helmet shell, corresponding to the user's ear position. A frameless torque motor is respectively installed in the left and right pivot connectors. The stator of the frameless torque motor is fixedly connected to the helmet shell, and the rotor of the frameless torque motor is driven connected to the goggles.

[0007] In some embodiments, a guide rail is provided within the accommodating gap, and the goggles are slidably connected to the guide rail.

[0008] In some embodiments, the frameless torque motor is connected to the goggles via a connecting rod, and the two ends of the connecting rod are respectively hinged to the rotor and the goggles.

[0009] In some embodiments, the inner side of the goggle is fixedly connected to the outer side of the buffer layer, and the inner side of the goggle has a slider that is slidably connected to a groove in the guide rail.

[0010] In some embodiments, the slider extends along the length of the goggles for a length not less than half the vertical length of the goggles.

[0011] In some embodiments, the slider is integrally injection molded onto the goggles.

[0012] In some embodiments, the protrusion height of the slider is d, where 1mm ≤ d ≤ 3mm.

[0013] In some embodiments, the guide rails are two in number, and the two guide rails are spaced apart along the left and right width direction of the helmet body, and the minimum distance between the two guide rails is not less than the maximum distance between the user's eyes.

[0014] In some embodiments, the helmet body is provided with heat dissipation holes extending from the helmet shell to the inner liner.

[0015] This utility model provides a helmet whose visor can be switched between a retracted protective state and a protective use state. Specifically, when the user is using the helmet and the visor, the visor can be in the protective use state, while when the helmet is not in use, the visor can be in the retracted protective state. In this state, the visor is housed in the space between the helmet shell and the buffer layer. When the helmet is impacted by an external force, on the one hand, the helmet shell outside the visor has sufficient impact resistance to effectively prevent the visor from directly contacting the external impacting object; on the other hand, the buffer layer inside the visor has a certain displacement compensation function, thereby forming a flexible support for the visor. This achieves effective protection for the visor in the retracted protective state, effectively preventing damage to the visor caused by external impacts in the retracted state and extending the service life of the helmet. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the helmet according to an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A three-dimensional structural diagram with the main body of the helmet omitted.

[0018] Figure 3 for Figure 1 A schematic diagram showing the connection relationship between the goggles, the guide rail, and the frameless torque motor.

[0019] Figure 4 for Figure 1 The right-side view of the helmet in the image;

[0020] Figure 5 for Figure 1 Rear view of the helmet in the image;

[0021] Figure 6 for Figure 1 The helmet in the picture is viewed from below.

[0022] The reference numerals in the attached figures are as follows:

[0023] 11. Helmet shell; 12. Buffer layer; 13. Liner; 14. Ventilation holes; 15. Lacing fasteners; 2. Goggles; 30. Frameless torque motor; 301. Connecting rod; 302. Bearing; 31. Left pivot connector; 32. Right pivot connector; 4. Guide rail. Detailed Implementation

[0024] See Figures 1 to 6As shown, according to an embodiment of the present invention, a helmet is provided, including a helmet body (not indicated in the figure). The helmet body includes a helmet shell 11, a buffer layer 12 (mostly made of expanded polystyrene) connected to the inner side of the helmet shell 11, and an inner liner 13 (preferably made of EVA polymer synthetic material, which has relatively high flexibility and shock absorption, and is better able to adapt to the head curve) connected to the inner wall of the buffer layer 12. Taking the position of the helmet when worn by the user as a reference, the helmet shell 11... The front side is also provided with goggles 2 (usually made of polycarbonate and polymethyl methacrylate). The left and right ends of the goggles 2 are hinged to the helmet shell 11. A receiving gap (not shown in the figure, not indexed) is formed between the front part of the helmet shell 11 and the buffer layer 12. The goggles 2 have a retracted protective state that is completely within the receiving gap and a protective use state that is at least partially outside the receiving gap. The goggles 2 can be driven to switch between the retracted protective state and the protective use state.

[0025] In this technical solution, the helmet's visor 2 can be driven to switch between a stored protective state and a protective use state. Specifically, when the user uses the helmet and the visor 2, the visor 2 can be in the protective use state, while when the helmet is not in use, the visor 2 can be in the stored protective state. In this state, the visor 2 is housed in the space between the helmet shell 11 and the buffer layer 12. When the helmet is impacted by an external force, on the one hand, the helmet shell 11 outside the visor 2 has sufficient impact resistance to effectively prevent the visor 2 from directly contacting the external impacting object. On the other hand, the buffer layer 12 inside the visor 2 has a certain displacement compensation function, thereby forming a flexible support for the visor 2. This achieves effective protection for the visor 2 in the stored protective state, effectively preventing damage to the visor 2 caused by external impact in the stored state, and improving the service life of the helmet.

[0026] In one feasible implementation, the aforementioned goggles 2 can be switched by the user's force. On the left and right sides of the helmet shell 11, corresponding to the user's ears, there are left pivot connectors 31 and right pivot connectors 32 respectively. The left and right ends of the goggles 2 are pivotally connected to the helmet shell 11 through the aforementioned left pivot connectors 31 and right pivot connectors 32 respectively. Specifically, the aforementioned left pivot connectors 31 and right pivot connectors 32 include, for example, a central shaft (not shown in the figure) fixedly connected to the helmet shell 11. The left and right ends of the goggles 2 are respectively provided with corresponding rotating cylinders (not shown in the figure), and the rotating cylinders are connected to the central shaft in an inner and outer fit. When the user is not wearing the helmet, the user can apply force from bottom to top along the retraction direction of the goggles 2. At this time, the goggles 2 will rotate around the hinge points between the left and right ends and the helmet shell 11. When the goggles 2 are fully inserted into the aforementioned receiving gap, the goggles 2 are retracted. Conversely, when the user needs to wear the helmet, the user can apply force from top to bottom along the extension direction of the goggles 2 until the goggles 2 are in the eye protection state, and then release the force. This manual driving method has a simple structure and low manufacturing cost. Corresponding to the user's manual switching of the goggles 2, a flange (not shown in the figure) protruding outward or inward along the thickness direction of the goggles 2 can be provided on the lower edge of the goggles 2. When the goggles 2 is switched to the retracted protective state, the flange can be engaged in the buckle groove provided on the helmet shell 11 near the receiving gap (that is, the gap formed between two oppositely arranged elastic hooks) to ensure that the goggles 2 can be reliably in the aforementioned retracted protective state.

[0027] In another feasible embodiment, the state switching of the aforementioned goggles 2 can also be achieved through automatic drive. In this case, a frameless torque motor 30 is respectively installed in the left pivot connector 31 and the right pivot connector 32. The stator of the frameless torque motor 30 (not labeled in the figure) is fixedly connected to the helmet shell 11. For example, the frameless torque motor 30 is assembled in the aforementioned connecting cylinder. The stator of the frameless torque motor 30 is fixedly connected to the inner wall of the connecting cylinder, while the rotor of the frameless torque motor 30 (not labeled in the figure) is rotatably connected to the helmet shell 11 through a corresponding rotating shaft (at least one end of the rotating shaft is rotatably connected to the helmet shell 11, for example, to the outer end of the aforementioned connecting cylinder, so as to ensure the relative stability of the position between the rotor and the stator). The rotor of the frameless torque motor 30 is driven to the goggles 2, so as to achieve automatic drive of the state switching of the goggles 2 through the operation of the frameless torque motor 30. It should be noted that, corresponding to this embodiment, a flange protruding outward or inward along the thickness direction of the goggles 2 can also be provided on the lower edge of the goggles 2, as described above, to ensure that the goggles 2 can be reliably in the aforementioned stored and protected state.

[0028] In this technical solution, a frameless torque motor 30 is set on each of the left and right sides of the helmet shell 11 to achieve automatic switching of the state of the goggles 2. The larger power makes the switching smoother. The frameless torque motor 30 has the characteristics of compact structure and large output torque, which can meet the purpose of automatic switching of the state of the goggles 2 in the small space of the helmet. In addition, since the frameless torque motor 30 has a simpler structure and fewer components than the traditional rotary motor, its arrangement in the helmet can be more flexible, which is conducive to the compact design of the helmet structure. It is understandable that the aforementioned frameless torque motor 30 can be selected from commercially available, mature frameless torque motors (commercially available components). In specific selection, it is preferable to use a pre-built component with an integrated controller to further simplify the design process. The controller is equipped with corresponding start / stop buttons. After the frameless torque motor 30 is assembled onto the helmet shell 11, the start / stop buttons are located on the outer side of the helmet shell 11. When the user needs to store the goggles 2, pressing the start / stop button once will start the frameless torque motor 30 to rotate a certain number of times in the first rotation direction. When the user needs to extend the goggles 2, pressing the start / stop button again will restart the motor. The frameless torque motor 30 rotates a certain number of times in a second direction opposite to the first rotation direction, making the switching of the goggles 2 very convenient. To ensure the synchronous start and stop of the two frameless torque motors 30 on the left and right sides, and thus ensure the smooth switching of the goggles 2, the start and stop buttons for the two frameless torque motors 30 can be integrated into one, for example, integrated on the left or right side of the helmet body 1. The user only needs to control this start and stop button to achieve synchronous start and stop control of the two frameless torque motors 30. As conventional technology in the field of motors, this utility model does not particularly limit it, nor does it intend to protect it. It is understood that the aforementioned frameless torque motor 30 is also equipped with a corresponding battery (not shown in the figure, not indexed). The battery can be set on the inner side of the helmet shell 11, preferably near the aforementioned left pivot connector 31 and right pivot connector 32. Of course, the specific location can be reasonably selected according to actual needs, and this utility model does not limit its specific location.

[0029] For details, please refer to [link / reference]. Figure 2 and Figure 3 As shown, in some embodiments, a guide rail 4 is provided in the accommodating gap, and the goggles 2 are slidably connected to the guide rail 4.

[0030] In this technical solution, the goggles 2 and the guide rail 4 are slidably connected, which can reliably guide the state switching of the goggles 2 and ensure that the goggles 2 can smoothly achieve state switching.

[0031] In one specific embodiment, see Figure 3As shown, two guide rails 4 are provided, spaced apart along the left-right width direction of the goggles 2. The inner side of the guide rails 4 is fixedly connected to the outer side of the buffer layer 12. Corresponding grooves are formed on the outer side of the guide rails 4. The inner side of the goggles 2 has a slider (not shown in the figure). The goggles 2 are slidably connected to the grooves via the sliders. In a specific embodiment, the aforementioned slider is integrally injection molded onto the goggles 2, which reduces the processing difficulty of the goggles 2 and saves manufacturing costs. In a preferred embodiment, the groove depth is greater than the thickness of the slider, while the groove width can be approximately equal to the width of the slider. This ensures the position of the groove relative to the guide rails 4 in the left-right direction while preventing jamming due to deformation of the goggles 2 and guide rails 4 in the depth direction (since the guide rails 4 are mounted on the buffer layer 12, which has a certain deformation capacity).

[0032] In this technical solution, the guide rail 4 is formed on the buffer layer 12. The deformability of the buffer layer 12 can compensate for the shape and position deviation between the guide rail 4 and the slider, ensuring the smooth switching of the goggles 2. It is worth mentioning that placing the guide rail 4 on the buffer layer 12 can also compensate for the displacement deviation of the synchronization of the frameless torque motors 30 on both sides, reducing the probability of jamming caused by inconsistent sliding displacement on the left and right sides of the goggles 2 due to the synchronization deviation of the frameless torque motors 30 on both sides.

[0033] In some embodiments, the frameless torque motor 30 is connected to the goggles 2 via a connecting rod 301, and both ends of the connecting rod 301 are hinged to the rotor and the goggles 2, respectively. See details below. Figure 3As shown, each end of the connecting rod 301 is connected to a corresponding component via a bearing 302. Specifically, one end of the connecting rod 301 is hinged to the end face of the rotor of the frameless torque motor 30 via a bearing 302 (the connecting rod 301 is interference-fitted with the outer ring of the bearing 302, while the end face of the rotor is fixedly connected to the inner ring of the bearing 302 via corresponding screws). The other end of the connecting rod 301 is hinged to the left or right end of the goggles 2 via another bearing 302 (the connecting rod 301 is interference-fitted with the outer ring of the bearing 302, while the end of the goggles 2 is fixedly connected via corresponding screws). (Fixed to the inner ring of bearing 302), in this technical solution, the connecting rod 301 is hinged between the rotor and the goggles 2 for indirect drive, instead of directly driving the end of the goggles 2 to the rotor end face of the frameless torque motor 30. This reduces the difficulty of accurately designing the guiding direction of the aforementioned guide rail 4, and prevents the occurrence of state switching jamming due to deformation of the guide rail 4 and the matching design with the user's head shape. In other words, the indirect drive of the frameless torque motor 30 to the goggles 2 by the connecting rod 301 has a greater tolerance for positional deviation. Specifically, when the frameless torque motor 30 is turned on and rotated, its rotor will rotate, thereby driving the connecting rod 301 hinged to it to swing around the rotation axis of the rotor within a certain range. The swinging connecting rod 301 then pulls the goggles 2, which is hinged to its other end, to slide up and down along the guiding direction of the guide rail 4, thereby realizing the storage and protection of the goggles 2 and their extension for use. It is understood that no other structures should be provided within the swing range of the connecting rod 301 to prevent obstruction of the swing of the connecting rod 301, and the connecting rod 301 is also located within the aforementioned accommodating gap.

[0034] In some embodiments, the slider extends along the length of the goggles 2 by a length not less than half the vertical length of the goggles 2. In this case, the slider objectively forms a rib extending along the vertical length of the goggles 2. By setting the rib, it can reliably guide the goggles 2 during state switching, and at the same time, it can improve the structural strength of the goggles 2 to a certain extent, thereby improving its resistance to impact damage. The protrusion height of the slider is d, 1mm≤d≤3mm, to ensure that the slider has both reliable sliding guidance and strength enhancement functions.

[0035] In some embodiments, there are two guide rails 4, which are spaced apart along the left-right width direction of the helmet body. The minimum distance between the two guide rails 4 is not less than the maximum distance between the user's eyes. It is understood that, in this case, the corresponding slider on the inner side of the goggles 2 also has two sliders. The aforementioned maximum distance between the eyes can be reasonably selected according to different user groups. For example, the value for children's helmets is generally smaller than that for adult helmets.

[0036] In this technical solution, the minimum distance between the two guide rails 4 is designed to be greater than the maximum distance between the user's two eyes, which can prevent the slider setting range from being too large and thus not adversely affecting the user's field of vision.

[0037] The helmet body has multiple heat dissipation holes 14 extending from the helmet shell 11 to the inner liner 13, which can dissipate the heat generated on the user's head in a timely manner and improve the user's wearing comfort.

[0038] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above are only preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A helmet, characterized in that, The helmet body includes a helmet shell (11), a buffer layer (12) connected to the inner side of the helmet shell (11), and an inner liner (13) connected to the inner wall of the buffer layer (12). With the helmet in the user's wearing state as a reference, the front side of the helmet shell (11) is also provided with a goggle (2). The left and right ends of the goggle (2) are hinged to the helmet shell (11). A receiving gap is formed between the front part of the helmet shell (11) and the buffer layer (12). The goggle (2) has a storage and protection state that is completely within the receiving gap and a vision protection use state that is at least partially outside the receiving gap. The goggle (2) can be driven to switch between the storage and protection state and the vision protection use state.

2. The helmet according to claim 1, characterized in that, On the left and right sides of the helmet shell (11), corresponding to the user's ear position, there are respectively a left pivot connector (31) and a right pivot connector (32). A frameless torque motor (30) is respectively installed in the left pivot connector (31) and the right pivot connector (32). The stator of the frameless torque motor (30) is fixedly connected to the helmet shell (11), and the rotor of the frameless torque motor (30) is driven connected to the goggles (2).

3. The helmet according to claim 2, characterized in that, The accommodating gap is provided with a guide rail (4), and the goggles (2) are slidably connected to the guide rail (4).

4. The helmet according to claim 3, characterized in that, The frameless torque motor (30) is connected to the goggles (2) via a connecting rod (301), and the two ends of the connecting rod (301) are respectively hinged to the rotor and the goggles (2).

5. The helmet according to claim 3, characterized in that, The inner side of the guide rail (4) is fixedly connected to the outer side of the buffer layer (12), and the inner side of the goggles (2) has a slider, which is slidably connected to the groove of the guide rail (4).

6. The helmet according to claim 5, characterized in that, The slider extends along the length of the goggles (2) for a length not less than half the vertical length of the goggles (2).

7. The helmet according to claim 6, characterized in that, The slider is integrally injection molded onto the goggles (2).

8. The helmet according to claim 7, characterized in that, The protrusion height of the slider is d, where 1mm ≤ d ≤ 3mm.

9. The helmet according to claim 3, characterized in that, The guide rail (4) has two rails, which are spaced apart along the left and right width direction of the helmet body, and the minimum distance between the two rails (4) is not less than the maximum distance between the user's eyes.

10. The helmet according to claim 1, characterized in that, The helmet body has heat dissipation holes (14) extending from the helmet shell (11) to the inner liner (13).

Images